Got to some more weight savings while waiting for starship livestream to finish its last orbit and reentry (how about it for that ship catch!!! Next. level.) - Girodisc rear rotors. These allow us to use the actual 996 pads front and rear, rather than using a front 986 pad out back to sweep the rotor face. This means that both the pads and the rotor are lighter.
Worn (18.8mm) M3 rear rotor pair weight (in girodisc boxes): 32.8lb
Worn ~50% tall rear pads: 1.27kg (2.8lb)
New (20mm) rear girodisc rotor pair weight (in girodisc boxes): 27.6lb
New 996 rear pads: 1.24kg (2.7lb)
So just versus the worn parts, I'm saving 5.3lb total. Versus new parts this is something more like 8lb of mostly rotating unsprung weight. Pretty good! The fronts are only ~1.3lb/side lighter than my current ZCP rotors so I'll wait for those to wear down before swapping.
Worn (18.8mm) M3 rear rotor pair weight (in girodisc boxes): 32.8lb
Worn ~50% tall rear pads: 1.27kg (2.8lb)
New (20mm) rear girodisc rotor pair weight (in girodisc boxes): 27.6lb
New 996 rear pads: 1.24kg (2.7lb)
So just versus the worn parts, I'm saving 5.3lb total. Versus new parts this is something more like 8lb of mostly rotating unsprung weight. Pretty good! The fronts are only ~1.3lb/side lighter than my current ZCP rotors so I'll wait for those to wear down before swapping.
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